I mean, aren't we all required to attend school until we are at least 16 years?
Why aren't teachers held accountable for the product they release onto society?
My parents taught all six of us to respect ourselves enough to be
embarassed by acting like this at home, let alone out in public. If it only comes down to taking the time to explain to someone what they sound like and how they are "representing" themselves to the world and others, take few minutes to try to change a few of them, instead of blaming society for creating a gap between classes.